S
M
T
W
T
F
S
29
44°
35°
30
46°
32°
1
43°
30°
2
41°
29°
3
40°
34°
4
39°
38°
5
45°
37°
6
46°
34°
7
44°
35°
8
40°
37°
9
42°
38°
10
45°
37°
11
44°
37°
12
44°
35°
13
47°
36°
14
48°
38°
15
44°
36°
16
45°
39°
17
46°
38°
18
47°
39°
19
46°
36°
20
46°
36°
21
45°
34°
22
43°
35°
23
41°
35°
24
40°
30°
25
39°
27°
26
36°
27°
27
36°
26°
28
37°
24°
29
37°
25°
30
38°
26°
31
37°
26°
1
37°
28°
2
38°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Hanover
Hanover's December 2026 forecast shows daily high temperatures ranging from 36° to 48°, with overnight lows between 24° and 39°. The average high for December is 42° with an average low of 33°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Hanover. See also: January | February | March.